one-billionth
1
5.8
- noun
:
mil millonésima
- The best estimates suggest that in most cases about one billionth of the mass of the Sun is being accreted every year.
- one-billionth of a meter
Examples
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A nanoTesla is one-billionth of a Tesla.
Academic text (1992) -
What she found is that this super atom slowed down light to just one billionth of lightspeed in vacuum to just one mile per hour.
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I've read some place that our life is since the beginning of time, our life is worth one billionth of a second.
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The corona has less than one-billionth the density of the Earth's atmosphere, and would be considered to be a very good vacuum in a laboratory on Earth.
Academic text (1991) -
One nanometer—one billionth of a meter—is a magical point on the dimensional scale.
Academic text (2001) -
Therefore, to refer to a nanosecond is to mean one billionth of a second, and a nanometer is one billionth of a meter (Porod, 2004).
Academic text (2011) -
Therefore, to refer to a nanosecond is to mean one billionth of a second, and a nanometer is one billionth of a meter (Porod, 2004).
Academic text (2011) -
What can be seen starts at about 400 nm (nm = one billionth of a meter = 10^-9): the short end (violet) of the spectrum and goes up through the rainbow to about 700 nm on the long end (red).
Academic text (2008) -
A nanometer is equal to one-billionth of a meter, making it essential in fields like nanotechnology.
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The measurement of one-billionth of a liter is often referred to as a nanoliter in scientific contexts.
Synonyms
2
4.3
One part of a whole divided into one billion equal parts
How Small
- Specialized
1
5.8
1
3.6
1
3.6
29
1.0
61
1.0
∞
1.0
Surface Forms
Morphology
Etymology
The word one-billionth is made from the parts one, billion, and the ending -th, and it means 'one part of a billion equal parts'. Imagine cutting a cake into a billion tiny pieces and taking just one, and that image helps show why a one-billionth describes a very, very small amount.